WO2018096151A1

WO2018096151A1 - Damping and spring arrangement and method for production thereof

Info

Publication number: WO2018096151A1
Application number: PCT/EP2017/080544
Authority: WO
Inventors: Laszlo Kopacz
Original assignee: Sc Sebert Tehnologie Srl
Priority date: 2016-11-28
Filing date: 2017-11-27
Publication date: 2018-05-31
Also published as: KR20190089037A; DE102016223524A1; EP3545210B1; KR102216081B1; ES2878046T8; EP3545210A1; ES2878046T3

Abstract

The invention relates to a damping and spring arrangement having two end pieces (10, 11) and having a wire or cable arrangement (2) connecting the end pieces (10, 11) to each other and comprising at least one wire or cable piece (20, 21), wherein the end pieces (10, 11) each have at least one groove (14) on the lateral surfaces (13) thereof which face away from each other, wherein the at least one wire or cable piece (20, 21) is inserted into a groove (14) of the one end piece (10) and in a groove (14) of the other end piece (11), wherein a groove depth of the grooves (14) is smaller than a diameter of the inserted wire or cable piece (20, 21), wherein at least one bridge (16) is formed on at least one lateral region of the grooves (14) in each case, and wherein the bridges (16) arranged on at least one lateral region of the grooves (14) are plastically deformed such that the bridges (16) surround a section of the at least one wire or cable piece (20, 21), which is inserted into the groove (14), at least in part, in order to fix the wire or cable piece (20, 21) in the groove (14). The invention further relates to a method for producing said damping and spring arrangement (1). The invention further relates to a use of an end piece (10, 11) in a damping and spring arrangement (1).

Description

Damping and spring arrangement and method for its production

AREA OF APPLICATION AND PRIOR ART

The invention relates to a damping and spring arrangement with two end pieces and with a wire or rope assembly comprising at least one wire or rope piece, wherein the end pieces are connected to each other via the wire or rope assembly, wherein the end pieces each at their sides facing away from each other with at least a groove are provided, and wherein the at least one wire or rope piece is inserted in a groove of the one end piece and in a groove of the other end piece. The invention further relates to a method for producing this damping and spring arrangement. Finally, the invention relates to a use of an end piece with at least one groove in a damping and spring arrangement.

From EP 2 339 202 A1 a generic damping and spring arrangement is known, wherein sections of the at least one wire or rope piece is fixed in the grooves by deformed or compressed groove side regions. Such a damping and spring arrangement is characterized in that for producing the wire or rope arrangement, a wire or a rope can be wound in a simple manner by means of a simple winding machine to the two end pieces, that the turns each extend through the grooves. This is possible, for example, by means of an automated production process. Then only the groove side areas then have to be deformed or pressed in such a way that the turns are fixed in the grooves. This can be done for the individual grooves in succession or for all the grooves of an end piece in a single pressing operation, which can also be automated in a simple manner. Additional fixings are not required.

TASK AND SOLUTION

It is the object of the invention to further improve such a damping and spring arrangement and a method for the production thereof.

This object is achieved by the damping and spring arrangement with the features of claim 1, a method for producing a damping and spring arrangement with the features of claim 6 and a use of an end piece according to claim 9. Further advantages emerge from the dependent claims. According to a first aspect, a damping and spring arrangement with two end pieces and with the end pieces interconnecting wire or cable assembly comprising at least one wire or rope piece is provided, wherein the end pieces are each provided at their opposite side surfaces with at least one groove, wherein the at least one wire or rope piece is inserted in a groove of one end piece and in a groove of the other end piece, wherein a groove depth of the grooves is smaller than a diameter of the inserted wire or rope piece, wherein at least one side region of the grooves at least a web is formed, and wherein the webs arranged on at least one side region are plastically deformed such that the webs at least partially surround a portion of the at least one wire or rope piece inserted into the groove for fixing the wire or rope piece in the groove.

Since the groove depth is smaller than the diameter of the inserted wire or rope piece protrudes the inserted wire or rope piece, in contrast to the known from EP 2 339 202 A1 damping and spring assembly out of the groove.

The webs protrude from deformation of an interior of the grooves in such a way that an insertion of the wire or rope piece is not prevented in the grooves or at least not significantly disturbed. After insertion, the webs arranged on at least one side of a groove are plastically deformed and thereby the section of the wire or rope piece accommodated in the groove is fixed in the groove.

The plastic deformation is also referred to as compression. The end pieces are for this purpose of a plastically deformable material, in particular of a plastically deformable metal, such as aluminum, an aluminum alloy or stainless steel. The at least one wire or rope piece is preferably formed as a wire rope or steel wire strand. The webs can be dimensioned narrow, so that only small forces are applied for the pressing.

In one embodiment, a web is provided only on one side of the groove. In another embodiment, on both sides of the groove in each case at least one web is provided, wherein the free ends of the webs touch after a plastic deformation, so that the wire or rope piece is completely encompassed. In other embodiments remains between the free ends of the webs after a plastic deformation a distance, ie the webs embrace the wire or rope piece only partially and not completely. The end pieces are preferably provided for fixing during the manufacturing process and / or for later fixation of the two end pieces between to be damped and / or to resilient masses with mounting and / or holding holes.

In one embodiment, the length of the webs is less than a length of the groove, so that a web is formed, which extends only over part of the groove. In other embodiments, on both sides of the grooves or on one side of the groove extending over the entire length of the groove extending web is provided, wherein the webs have interruptions. In advantageous embodiments, a continuous web is provided on both side regions of a groove. In addition, embodiments are conceivable in which a plurality of short webs are provided from both side regions, wherein the webs of the opposite side regions are arranged offset and engage in a plastic deformation in the manner of a toothing.

In which angular range the portion of the wire or rope piece is included depends primarily on the depth of the grooves. By a suitable choice of the groove depth and the height of the webs while an angular range over which the webs embrace the section, can be fixed.

The wire or rope piece has, in known embodiments, an at least substantially circular cross-section. According to advantageous embodiments, the grooves have a region which is semicircular in cross section, the webs projecting from the semicircular region.

A material thickness of the webs is chosen such that a secure deformation and fixation without destruction is possible and at the same time the forces to be applied for a deformation are kept low.

The end pieces are rectangular or circular in one embodiment, the grooves protrude radially, for example, from a center. In an advantageous embodiment, the end pieces are each designed as elongated strip elements, which are each provided at their side facing away from each other with a plurality of transverse grooves extending transversely to the longitudinal direction, wherein the at least one wire or rope piece alternately through a respective groove of the one end piece and then a groove of the other end piece extends.

For a production of a described damping and spring arrangement, the at least one wire or rope piece is first inserted into a groove of one end piece and into a groove of the other end piece and in an advantageous embodiment Subsequently, portions of the wire or rope piece are fixed in the grooves by plastic deformation of arranged on at least one side region of the grooves webs such that the webs at least partially engage the inserted into the groove portion of the at least one wire or rope piece.

In one embodiment, the end pieces are each designed as elongated strip elements, which are each provided at their side faces facing away from each other with a plurality of transverse grooves extending to the longitudinal direction, for inserting the wire or rope piece first wrapping the at least one wire or rope piece to the End pieces are made such that the wire or rope piece alternately passes through a respective groove of one end piece and then through a groove of the other end piece.

Winding takes place for example by means of a winding device, for which purpose an assembly mandrel is fixed to the end pieces in one embodiment. A plastic deformation of the webs is carried out, for example, by means of a pressing device, wherein, depending on the design, all the webs are deformed simultaneously or successively.

In order to use in the manufacture of the damping and spring assembly, a wire or a rope which is wound without specific length dimension, for example on a supply roll, one end of the wire or rope is held before winding and the wire or rope is after the Fix in the grooves cut off to form the wire or rope piece. Subsequently, another wire or rope piece can be attached to the same end pieces or to new end pieces.

The webs are formed in advantageous embodiments by an adjacent to the groove in the tail introduced groove-shaped recess.

According to another aspect, there is provided the use of an end piece with grooves in a damper and spring assembly having two end pieces and a wire or rope assembly interconnecting the end pieces comprising at least one wire or rope piece, the end piece being attached to a side surface having at least one groove is provided, wherein a groove depth of the at least one groove is smaller than a diameter of the wire or rope piece to be inserted therein, and wherein at least one side region of the at least one groove at least one web is formed, and wherein at least a portion of the at least one wire or Cable piece in the at least one groove can be inserted and arranged on at least one side region of the at least one groove web so plastically is deformable, that the web at least partially engages the inserted into the at least one groove portion of the at least one wire or rope piece.

BRIEF DESCRIPTION OF THE DRAWINGS

Further advantages and aspects of the invention will become apparent from the claims and from the following description of an embodiment of the invention, which is explained below with reference to the figures. Showing:

1 is a perspective view of a damping and spring arrangement,

2 shows a side view of the damping and spring arrangement shown in FIG. 1, FIG.

3 shows a detail III according to FIG. 2, FIG.

4 is a perspective view of one of the two end pieces before attaching the wire or rope assembly before deformation,

5 is a side view of the end piece shown in Fig. 4,

Fig. 6 is a perspective view of one of the two end pieces without wire or rope arrangement after deformation and

Fig. 7: a side view of the end piece shown in Fig. 6.

DETAILED DESCRIPTION OF THE EMBODIMENTS

The damping and spring assembly 1 shown in Figures 1 to 3 consists of two at least substantially parallel and spaced-apart end pieces 10, 1 1 and a wire or rope assembly 2, by means of which the end pieces are interconnected. An end piece 10 arranged in FIGS. 1 to 3 in the drawing plane at the top is shown separately in FIGS. 4 to 7, FIGS. 4 and 5 show the end piece 10 before a plastic deformation according to the invention and FIGS. 6 and 7 show the end piece 10 according to FIG plastic deformation.

The illustrated end pieces 10, 1 1 are designed as elongated flat bar elements with a substantially rectangular cross-section. In other embodiments are end pieces provided with a different shape, for example, end pieces which have a square, oval, semicircular or similar cross-section. The end pieces 10, 1 1 are made of a deformable material, preferably a deformable metal, for example made of aluminum, an aluminum alloy or stainless steel. To fix these end pieces 10, 1 1 during the manufacturing process or later for fixing between objects to be damped or buffered, two through holes 12 are provided in the illustrated embodiment at each end piece, which are arranged in the embodiment at the end portions of the end pieces 10, 1 1. Depending on requirements, more or less two through holes 12 may be provided and / or occupy a different position. Further, it is conceivable to provide threaded holes or other connecting elements such as pins or the like instead of through holes.

The wire or rope assembly 2 shown comprises two helically wound wire or rope pieces 20, 21. At the ends of the wire or rope pieces 20, 21 is provided in each case a cover 22 to avoid injury and in the case of the formation of the wire or rope piece 20th , 21 as a wire rope or steel wire strand to secure the ends. In other embodiments short pieces of wire or rope are provided, which are each attached at one end to an end piece.

The illustrated end pieces 10, 1 1 have on a side surface 13 each have a plurality of transverse grooves 14 extending transversely to the longitudinal direction. These grooves are arranged in the illustrated embodiment equidistant and at an angle of 90 ° to the longitudinal direction, but are different distances of individual grooves 14 and / or an arrangement of the grooves 14 at a different angle transverse to the longitudinal direction possible. The number of grooves 14, their distances and orientation can be suitably selected by the skilled person depending on a damping and / or spring effect to be achieved.

In the illustrated embodiment, the two end pieces 10, 1 1 are designed differently, with an end piece 10 shown in the drawing above has twelve grooves 14. On the other hand, the end piece 11 shown in the drawing plane has only ten grooves, the grooves 14 being grouped into two groups of five grooves 14 each, and the two groups being spaced from a center of the end piece. In other embodiments, the two end pieces 10, 1 1 designed to be identical.

As best seen in Figures 4 and 5, in the illustrated embodiment, at both Seitenerbeichen the grooves 14 each have a web 16 is provided. The webs 16 are in the illustrated embodiment by parallel to the grooves fourteenth extending, groove-shaped recess 15 is formed, which are provided between successive grooves 14 on the side surfaces 13. On the outer sides of the grooves 14 arranged at the ends, groove-shaped recesses 17 are likewise provided, so that in each case a web 16 is formed on both side regions of the grooves 14 arranged at the ends. In the illustrated embodiment, only one groove-shaped recess 15 is provided between two grooves 14, whose width is chosen such that two webs 16 remain at the side regions to the grooves 14. In other embodiments, two recesses are provided between the successive grooves 14, the width of which is smaller compared to the illustrated embodiment, wherein a web 16 is formed on each side of an adjacent grooves 14 by each of the groove-shaped recesses.

As can be seen in Figures 1 to 3, portions of the helically wound wire or rope pieces 20, 21 are inserted into the grooves 14 and fixed in the grooves 14 by means of the plastically deformed webs 16 for this purpose.

As can be seen in FIG. 5, the grooves 14 in the illustrated embodiment have a semicircular cross-section. A groove depth T _{14 of} the grooves 14 is smaller than a diameter of the schematically illustrated in Fig. 5 hatched wire or rope piece 20 so that the inserted wire or rope piece 20 protrudes from the groove 14.

Figures 6 and 7 show the end piece 10 without wire or rope pieces 20, 21 after a plastic deformation of the webs 16. After the deformation of the webs 16 and embracing the projecting out of the groove 14 portion of the wire or rope remains in the illustrated embodiment 16, a gap between the ends of the plastically deformed webs.

To produce the damping and spring arrangement 1 illustrated in FIGS. 1 to 3, firstly the two end pieces 10, 11 are fixed on both sides of an assembly mandrel, not shown, such that the side surfaces 13 of the end pieces 10, 11 having the grooves 14 are in opposite directions Directions. Then two wire or rope pieces 20, 21 helically with opposite winding sense to form the wire or rope assembly 2 at the two end pieces 10, 1 1 are attached. This is done by each a wire or rope is wound around the two end pieces 10, 1 1 under tensile load, that the turns each run alternately through a groove 14 in one end piece 10 and then through a groove 14 in the other end piece 1 1. A beginning of the wire or rope is fixed in order to allow a tight winding. After inserting the wire or rope in the last groove 14 arranged on the side regions of each groove 14 webs 16 are so plastic deforms that the arranged in the groove 14 portion of the wire or rope is fixed in the groove 14. This is shown in the enlarged section according to FIG. In this case, both provided on the side regions of a groove 14 webs 16 against each other, including the continuous section of the wire or rope piece 20, 21 plastically deformed. After fixing the portions of the wire rope in the manner described on the two end pieces 10, 1 1, the protruding ends of the wire or rope are cut to form the wire or rope piece 20, 21 and the ends are provided with the covers 22.

The two wound in opposite directions wire or rope pieces 20, 21 can be wound or fixed simultaneously or sequentially. Also, the plastic deformation and compression of the webs 16 on the side regions of the grooves 14 can be carried out successively or together by a corresponding tool. After completion, the mounting mandrel (not shown) can be pulled out or otherwise removed.

In the illustrated embodiment, the webs 16 extend over the entire length of the groove 14, so that a particularly good and secure fixation is achieved. In other embodiments, however, shorter webs or interrupted webs are provided so that a punctual fixation is achieved.

In the illustrated embodiment, two wire or rope pieces 20, 21 are provided. In another embodiment, only a single piece of wire or rope is provided. In yet another embodiment, the winding process is performed such that a single winding has two opposing areas. This can be done, for example, that the two inner coil ends are connected together. In yet another embodiment, more than two wire or rope pieces 20, 21 are provided. Preferably, an even number of wire or rope pieces 20, 21 is provided for a symmetrical design of the damping and spring assembly 1.

Claims

1 . Damping and spring arrangement with two end pieces (10, 11) and with a wire or rope arrangement (2) connecting the end pieces (10, 11) together, comprising at least one wire or rope piece (20, 21), the end pieces ( 10, 1 1) are each provided with at least one groove (14) on their side faces (13) facing away from each other, and wherein the at least one wire or rope piece (20, 21) in each case in a groove (14) of the one end piece (10 ) and in a groove (14) of the other end piece (1 1) is inserted, characterized in that a groove depth of the grooves (14) is smaller than a diameter of the inserted wire or rope piece (20, 21), and that respectively at least one web (16) is formed on at least one side region of the grooves (14), wherein the webs (16) arranged on at least one side region of the grooves (14) are plastically deformed in such a way that the webs (16) engage into the groove ( 14) inserted portion of the at least one wire or Rope piece (20, 21) at least partially engage around a fixation of the wire or rope piece (20, 21) in the groove (14).

2. damping and spring arrangement according to claim 1, characterized in that on both side regions of a groove (14) each have a web (16) is provided.

3. damping and spring arrangement according to claim 1 or 2, characterized in that on at least one of the two side regions of a groove (14) provided web (16) extends continuously over the length of the groove (14).

4. damping and spring arrangement according to one of the preceding claims, characterized in that the grooves (14) have a semi-circular in cross-section area, wherein the webs (16) protrude from the semicircular area.

5. damping and spring arrangement according to one of the preceding claims, characterized in that the end pieces (10, 1 1) are each designed as elongated strip elements, each at their side facing away from each other (13) with a plurality transverse to the longitudinal direction grooves (14) are provided, wherein the at least one wire or rope piece (20, 21) alternately through a respective groove (14) of the one end piece (10) and then through a groove (14) of the other end piece (1 1). A method for producing a damping and spring arrangement (1) according to one of claims 1 to 5 with two end pieces (10, 1 1) and with one of the end pieces (10, 1 1) interconnecting wire or rope assembly (2) comprising at least one Wire or rope piece (20, 21), wherein the end pieces (10, 1 1) are each provided at their side facing away from each other side (13) with at least one groove (14), wherein a groove depth of the grooves (14) is smaller than a diameter of the inserted wire or rope piece (20, 21), and wherein in each case at least one side region of the grooves (14) at least one web (16) is formed, comprising the steps

Insert the at least one wire or rope piece (20, 21) in a groove (14) of the one end piece (10) and in a groove (14) of the other end piece (1 1) and

Fixing portions of the wire or rope piece (20, 21) in the grooves (14) by plastic deformation of the arranged on at least one side region of the grooves (14) webs (16) such that the webs (16) into the groove ( 14) inserted portion of the at least one wire or rope piece (20, 21) at least partially engage around.

A method according to claim 6, characterized in that the end pieces (10, 1 1) are each designed as elongated strip elements, which are each provided at their side faces facing away from each other with a plurality of grooves extending transversely to the longitudinal direction, wherein for inserting the at least one wire or rope piece the at least one wire or rope piece (20, 21) is wound around the end pieces (10, 11) such that the wire or rope piece (20, 21) alternately passes through a groove (14) of the one end piece (10). and then through a groove (14) of the other end piece (1 1) extends.

A method according to claim 6 or 7, characterized in that the webs (16) are formed by an adjacent to the groove (14) introduced groove-shaped recess (15).

Use of an elongated strip element in a damping and spring arrangement (1) with two end pieces (10, 11) and with a wire or rope arrangement (2) interconnecting the end pieces (10, 11) comprising at least one wire or rope piece ( 20, 21), wherein the end piece (10, 11) is provided with at least one groove (14) on a side surface (13), a groove depth of the at least one groove (14) is smaller than a diameter of the wire or rope piece (20, 21) to be inserted therein in that at least one portion of the at least one wire or rope piece (20, 21) is insertable into at least one groove (14) on at least one side region of the at least one groove (14) and at least one a web of the at least one groove (14) arranged web (16) is plastically deformable such that the web (16) in the at least one groove (14) inserted portion of the at least one wire or rope piece (20, 21) at least partially embraces.